Thanks for all the info. I dropped the scans & report off at the ENT's office this morning. They said he'd take a look and work me in if he felt it was urgent. Also got my appointment bumped up a week due to a cancellation.
Back in April I posted about my jaw being out of alignment:
http://forums.pelicanparts.com/off-topic-discussions/604803-dentist-doctor-chiropractor-jaw-alignment-issues.html
I'm wondering if there's some correlation between the jaw mis-alignment (which is still an issue) and the lymph nodes.